Colossus

A colossus’s natural weapons ignore the hardness of structures not made of adamantine alloy or a harder material. Against structures made of such materials, a colossus’s natural weapons ignore half of the structure’s hardness.

Large concentrations of sapient creatures are like beacons that call to colossi. A colossus can sense groups of 2,000 or more such creatures gathered together in a single settlement at a range of 5 miles. This ability does not allow a colossus to know how many creatures are in a given location, but does allow it to pinpoint pockets of sapient life and know which pockets are the most populous.